Midwest Industries have been making some of the most sought after, durable, and innovative firearm parts for a number of years. The use of high quality materials and innovative design made Midwest Industries a leader in the industry. ERS Flip-Up Rear Sight has established itself as another great product from Midwest Industries.

Midwest Industries ERS (Emergency Rear Sight) Flip Up Rear Sight.

A2 style dual aperture, fully protected from accidental damage
Thick, rugged pivot ears
Made from 6061 aluminum, mil-spec hard coat anodized to stand up to the most extreme conditions
Locking detent with double the locking surface, for maximum strength
Lock detent button with stepped down turns to provide a surface you can grab onto if your hands are muddy or wet
Same style windage knob as on the standard M16: .65 MOA for M4 type carbines and .49 MOA on standard AR-15 and M16 rifles
Allen wrench for installation included
Height is .750" when folded down.
Black.